uterine cotyledon

例句：

1. 1. The uterine cavity is the space inside the womb.
   子宫腔是子宫内的空间。
2. 2. The uterine fibroids are benign tumors that can cause pain during menstruation.
   子宫纤维瘤是一种良性肿瘤，会在月经期间引起疼痛。
3. 3. Uterine cancer is a type of cancer that affects the lining of the uterus.
   子宫癌是一种影响子宫内膜的癌症类型。